Silent air compressor



FIG. 1 is a front view of a silent air compressor, showing my new design;

FIG. 2 is a back view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is another perspective view thereof, shown with the stand in extended condition.

The broken lines in the drawing depict portions of the silent air compressor that form no part of the claimed design. 

CLAIM The ornamental design for a silent air compressor, as shown and described. 